10243557121 has 8 divisors (see below), whose sum is σ = 11710547264. Its totient is φ = 8777473200.

The previous prime is 10243557113. The next prime is 10243557151. The reversal of 10243557121 is 12175534201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10243557121 - 2³ = 10243557113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10243557151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202155 + ... + 247696.

It is an arithmetic number, because the mean of its divisors is an integer number (1463818408).

Almost surely, 2^10243557121 is an apocalyptic number.

It is an amenable number.

10243557121 is a deficient number, since it is larger than the sum of its proper divisors (1466990143).

10243557121 is an equidigital number, since it uses as much as digits as its factorization.

10243557121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453111.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 10243557121 in words is "ten billion, two hundred forty-three million, five hundred fifty-seven thousand, one hundred twenty-one".